US4015356A - Revolver cylinder for the ejection of rimless cartridge cases - Google Patents

Revolver cylinder for the ejection of rimless cartridge cases Download PDF

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Publication number
US4015356A
US4015356A US05/585,697 US58569775A US4015356A US 4015356 A US4015356 A US 4015356A US 58569775 A US58569775 A US 58569775A US 4015356 A US4015356 A US 4015356A
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United States
Prior art keywords
head
cartridge
cartridges
cylinder
revolver
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US05/585,697
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English (en)
Inventor
Gilbert Maillard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manufacture de Machines du Haut Rhin SA MANURHIN
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/02—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for revolver-type guns, e.g. revolvers

Definitions

  • the present invention relates to the cylinder of a revolver provided with an ejection mechanism for rimless cartrdige cases.
  • Such mechanism effects the simultaneous ejection of all of the cartridge cases in the cylinder; it includes a common ejector means having a generally disc-shaped head having a plurality of equally angularly spaced cutout portions along its periphery, such cutout ortions being aligned with the chambers in the cylinder of the revolver.
  • the invention also relates to a revolver provided with such a cylinder.
  • Revolver cylinders provided with cartridge case ejecting mechanisms are well-known, but prior ejecting mechanisms are usually used only with ammunition which has a rim or collar on the rear end of the cartridge case.
  • the rim or flange of the cartridge when the cartridge is fully insterted into the chamber of the cylinder, is received within an annular seat made up in part of a groove in the rear of the cylinder and in part by a portion of the head of the ejector.
  • the head of the ejector in engaging the forward surface of the rim of flange on the cartridge case, permits the ejection of the cartridge case when the ejector head is thrust rearwardly away from the revolver cylinder proper.
  • the present invention relates to the cylinder of a revolver designed for use with rimless cartridges, that is, those having no rim or flange on their rear ends but presenting an annular groove near the rear end of the cartridge casing, for example, 9 mm cartridges of the type designated "parabellum" which are presently used in a number of different automatic handguns.
  • each cartridge is positioned in a chamber of the cylinder by means of an annular shoulder which is disposed between the rear end of the projectile or ball and the forward end of the cartridge case, the annular shoulder on the cartridge engaging an annular shoulder within the chamber of the cylinder.
  • the present invention provides a cylinder provided with an ejector mechanism which permits the ejection of the cases of cartridges devoid of rims or flanges on their bases or rear ends.
  • the head of the common ejecting mechanism is provided in the zone of each cutout portion therein with elastic means which is adapted to engage within the annular groove at the rear end of the cartridge case and to cooperate with such groove at the end of its introduction into the respective chamber, the cartridge case remaining in engagement with such resilient means from the time when it is fully inserted into the chamber of the cylinder until its complete ejection therefrom.
  • the head of the common ejector means presents a groove which extends completely about its periphery including the cutout portions in such head.
  • Such peripheral groove in the head is disposed in the same plane as the annular grooves at the rear end of the cartridge cases when such cases are fully inserted into the respective chambers in the cylinder with the annular shoulder between the forward end of the cartridge casing and the projectile or ball engagement with the annular shoulder within the chamber of the cylinder.
  • the said peripheral groove is provided in each of the cutout portions thereof with the above-described elastic means which is engaged within the respective grooves at the rear end of the cartridge casings.
  • such elastic retaining means are constituted by a plurality of generally U-shaped or semicircular leaf springs which enter within the annular groove at the rear end of the cartridge casings at two diametrically opposed zones.
  • Fig. 1 is a view in side elevation of a common ejector means, the elastic casing engaging members being omitted therefrom;
  • FIG. 2 is a view in end elevation of the ejecting means shown in FIG. 1, the view being taken in the direction from right to left in FIG. 1;
  • FIG. 3 is a view partially in vertical axial section and partially in side elevation of a revolver cylinder in accordance with the invention, said view showing a portion of the common ejector mechanism, such mechanism being shown positioned at the right generally within the cylinder with a cartridge shown in phantom lines fully inserted within an upper chamber of the cylinder, the common ejector mechanism being shown in phantom lines extended to the right to eject a cartridge casing;
  • FIG. 4 is a view in end elevation taken in the direction from right to left in FIG. 3, a portion of the head of the ejector means in the zone of two upper cutout portions thereof being broken away to show two U-shaped leaf springs;
  • FIG. 5 is fragmentary view partially in vertical axial section and partially in side elevation of the revolver cylinder of the invention at the location of one of the chambers therein, the view being on a scale which is greatly enlarged with respect to the other figures of the drawings;
  • FIG. 6 is a fragmentary view in vertical cross-section through the revolver cylinder of the invention.
  • the common ejector means 10 is provided with a head 12 disposed in a plane at right angles to the longitudinally extending stem thereof, the head 12 being generally in the form of a disc and having six equally angularly spaced cutout portions 14 in its periphery. These cutout portions 14 are accurately located in alignment with the respective chambers 16 in the cylinder 18 of the revolver, and thus permit the insertion of loaded cartridges into such chambers 16 of the cylinder.
  • Conventional means mount the stem of the ejector means 10 within the cylinder for turning therewith, while permitting the ejector means to move between the solid line and the phantom line positions there shown in FIG. 3.
  • the present invention relates to a revolver cylinder having an ejection mechanism which is made in such manner as to permit the use of rimless cartridges therein, such as, for example, 9 mm parabellum cartridges.
  • the head 12 of the common ejector means 10 has a continuous peripheral groove 20 which extends completely around the contour of the head.
  • FIGS. 1 and 2 show the particular shape and disposition of the peripheral groove 20 in the illustrative embodiment.
  • the groove 20 is positioned in the head 12 of the common ejector means 10 in such manner as to be accurately disposed in the same plane as the annular grooves 22 in the rear part of each of the cartridges when the cartridges are fully inserted into the respective chambers in the revolver cylinder with the ejector means in the solid line position thereof shown in FIG. 3, and also in the position thereof shown in FIG. 5.
  • the loaded cartridge has an annular shoulder between the outer cylindrical surface of the cartridge casing 24 and the ball or projectile 26, such shoulder accurately engaging a confronting annular shoulder 28 in the chamber 16 of the cylinder when the cartridge is fully inserted into the chamber.
  • the peripheral groove 20 of the head 12 of the ejector means and the annular groove 22 at the rear of the cartridge casing lie in the same transverse plane.
  • each of the springs 30 is generally in the form of a symmetrical U, and more particularly, with the exception of its two opposite ends, is generally of semi-circular form.
  • each of the springs 30 has a section of right circular shape, as shown particularly in FIG. 5.
  • the various springs 30, each one of which is disposed in a respective cutout portion 14 in the peripheral groove 20, is designed to be received at two diametrically opposed zones 32 and 34 in the annular groove 22 at the rear end of the casing of each of the respective cartridges when the cartridges are fully inserted into the respective chambers 16 of the revolver cylinder, as shown in FIG. 5, wherein the annular shoulder between the forward end of the cartridge casing and the projectile 26 is engaged with the annular shoulder 28 in the chamber 16 in the cylinder.
  • each of the springs 30 is held within the groove 20 only at a single central zone 36. This permits both legs or branches of the springs 30 to present a good elasticity.
  • the fixing of the central part of a spring 30 at a central point 36 is preferably done by welding the spring to the opposite walls of the groove 20 at such point; welds 38 for this purpose are shown in FIG. 5.
  • said springs are provided with free ends of extremities 40 which are curved in opposite directions generally radially outwardly with respect to the interior of the U-shape of the springs to assure a perfect guidance of the free extremities of the springs 30 in the peripheral groove 20.
  • Such ends 40 are thus guided in the interior of the peripheral groove 20 and are not apparent unless one looks at the chambers of the cylinder in the direction of its axis of rotation (FIG. 4).
  • each of the springs 30 in the relaxed state of each of the springs 30 the distance between the zones 32 and 34 of the opposite arms of the spring is less than the root diameter of the annular groove 22 in the rear of the casing of each cartridge.
  • all of the flexibility of each of the branches of the spring is retained, thereby permitting the branches of the spring to be spread apart upon the introduction of the respective cartridge into the respective chamber 16 of the revolver cylinder 18.
  • each of the ends 40 of the spring 30 remain guided within the interior of the annular groove 22 in the groove 20 of the ejector head 12, and that each of the springs 30 engages the root surface of the annular groove 22 of the cartridge casing at two diametrically opposed zones 32 and 34.
  • each spring 30, which is connected as we have seen at the central zone 36 thereof to the head 12 of the ejector remains in engagement at the zones 30 and 34 with the root surface of the annular groove 22 in the rear of the cartridge casing.
  • Such engagement of the springs with the cartridge casing permits the complete ejection of the casing while assuring the guiding of the casing until the last moment.
  • the casing shown at the left in FIG. 3 can then be readily disengaged from the spring 30 and thus removed from the ejector.
  • the ejection of the shell casings from the revolver cylinder may be effected manually or automatically or semi-automatically by conventional means, that is, that the ejecting means 10 simultaneously effects the ejection of all of the cartridge cases of fired cartridges or unfired cartridges simultaneously.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Coating Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Closures For Containers (AREA)
US05/585,697 1974-06-11 1975-06-10 Revolver cylinder for the ejection of rimless cartridge cases Expired - Lifetime US4015356A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7420125A FR2283415A1 (fr) 1974-06-11 1974-06-11 Barillet de revolver pour l'ejection des douilles sans collerette
FR74.20125 1974-06-11

Publications (1)

Publication Number Publication Date
US4015356A true US4015356A (en) 1977-04-05

Family

ID=9139882

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/585,697 Expired - Lifetime US4015356A (en) 1974-06-11 1975-06-10 Revolver cylinder for the ejection of rimless cartridge cases

Country Status (10)

Country Link
US (1) US4015356A (de)
JP (1) JPS5440879B2 (de)
BE (1) BE829137A (de)
CH (1) CH593473A5 (de)
DE (2) DE7518670U (de)
ES (1) ES438389A1 (de)
FR (1) FR2283415A1 (de)
GB (1) GB1468618A (de)
IT (1) IT1049436B (de)
SE (1) SE7506616L (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813891A1 (de) * 1977-05-18 1978-11-23 Bangor Punta Operations Inc Patronenhuelsenauszieher fuer revolver
US4541193A (en) * 1984-01-19 1985-09-17 Flippin George F Revolver cylinder and extractor assembly
CN103206895A (zh) * 2013-03-19 2013-07-17 陕西科技大学 组合弹膛式转膛枪
US8733010B2 (en) 2011-11-19 2014-05-27 Charter Arms Rimless cartridge extractor assembly and method of use
US20150040451A1 (en) * 2013-03-15 2015-02-12 Desert Leasing & Licensing, Llc Forward ejection assembly for firearms
US10006731B2 (en) * 2016-07-01 2018-06-26 Smith & Wesson Corp. Rotary ammunition magazine and follower
US10718584B2 (en) 2016-11-01 2020-07-21 Ra Brands, Llc Rotary magazine with bolt hold open assembly
US11118855B2 (en) * 2017-10-06 2021-09-14 George KOESTER Extractor for revolvers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATA157690A (de) * 1990-07-27 1997-07-15 Pse Prod & Systementwicklung Handfeuerwaffe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US923068A (en) * 1909-02-26 1909-05-25 Harcourt Bull Cartridge-holder.
US1181417A (en) * 1916-01-31 1916-05-02 Smith & Wesson Revolver.
US3755950A (en) * 1971-10-12 1973-09-04 Bangor Punta Operations Inc Cartridge loading and extractor assembly for revolvers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE573096C (de) * 1933-03-27 Siemens Schuckertwerke Akt Ges Patronenauszieher mit federnder Kralle
DE687451C (de) * 1938-03-13 1940-01-30 Mauser Werke Akt Ges Aus zwei symmetrischen Haelften bestehender Auszieher
DE748439C (de) * 1940-11-27 1944-11-02 Anordnung zum Halten der Patronen fuer Schiesswaffen mit einer Magazintrommel
US3615348A (en) * 1968-07-31 1971-10-26 Armco Steel Corp Stainless steel melting practice

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US923068A (en) * 1909-02-26 1909-05-25 Harcourt Bull Cartridge-holder.
US1181417A (en) * 1916-01-31 1916-05-02 Smith & Wesson Revolver.
US3755950A (en) * 1971-10-12 1973-09-04 Bangor Punta Operations Inc Cartridge loading and extractor assembly for revolvers

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813891A1 (de) * 1977-05-18 1978-11-23 Bangor Punta Operations Inc Patronenhuelsenauszieher fuer revolver
US4541193A (en) * 1984-01-19 1985-09-17 Flippin George F Revolver cylinder and extractor assembly
US8733010B2 (en) 2011-11-19 2014-05-27 Charter Arms Rimless cartridge extractor assembly and method of use
US20150040451A1 (en) * 2013-03-15 2015-02-12 Desert Leasing & Licensing, Llc Forward ejection assembly for firearms
US9109849B2 (en) * 2013-03-15 2015-08-18 Nicholas E. Young Forward ejection assembly for firearms
CN103206895A (zh) * 2013-03-19 2013-07-17 陕西科技大学 组合弹膛式转膛枪
CN103206895B (zh) * 2013-03-19 2015-02-25 陕西科技大学 组合弹膛式转膛枪
US10006731B2 (en) * 2016-07-01 2018-06-26 Smith & Wesson Corp. Rotary ammunition magazine and follower
US10718584B2 (en) 2016-11-01 2020-07-21 Ra Brands, Llc Rotary magazine with bolt hold open assembly
US11118855B2 (en) * 2017-10-06 2021-09-14 George KOESTER Extractor for revolvers

Also Published As

Publication number Publication date
ES438389A1 (es) 1977-01-16
JPS5440879B2 (de) 1979-12-05
GB1468618A (en) 1977-03-30
SE7506616L (sv) 1975-12-12
IT1049436B (it) 1981-01-20
CH593473A5 (de) 1977-11-30
FR2283415B1 (de) 1976-12-24
FR2283415A1 (fr) 1976-03-26
JPS5111700A (de) 1976-01-29
DE2526065A1 (de) 1975-12-18
DE2526065C2 (de) 1982-07-08
DE7518670U (de) 1975-11-20
BE829137A (fr) 1975-09-01

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